For the moment, I'm just putting in the forum rules. The other stuff is all pretty solid and either recorded somewhere on my computer or ingrained into my memory.
We haven't had the gallery in a long while either. The wiki replaced the gallery, because the gallery was under-used and the wiki was easier to navigate. Then we took down the wiki because it stopped working. If I put up the wiki, chances are it'll function as the gallery as well.
Incidentally, you've just reminded me to add "Where should I post?".